Tg(Ins2-GAD2)2Lt

The transgene comprises the cDNA sequence encoding human glutamic acid decarboxylase 2 under control of a modified rat insulin 2 promoter composed of 9.5 kb of genomic DNA from upstream of the transcription initiation site fused to the first intron of Ins2. Densitrometric Southern blot analysis indicates presence of 4-5 copies of the transgene. FISH analysis and pseudo-Giemsa metaphase spread analysis showed integration to have occurred near the centromere of Chr 15. Expression in the pancreatic islets of transgenic mRNA has been demonstrated by reverse transcription followed by PCR (RT-PCR), and of GAD2 protein by western blot analysis. (J:100251)